What controlled Americans' minds during the War of Independence

A．temperature affects rats' memory
B．the relationship between temperature and memory is very clear
C．there is distinction between short-term memory and long-term memory
D．rats can relearn the task after forgetting it

A．The difference between short-term memory and long-term memory.
B．The experiments of two groups of rats.
C．The temperature for rats to lose their memory.
D．The importance of memory.